If the model is converted from another format, I don't have the original format or pictures of it... but I do think the warp grills need to be reworked, they're not metal bars, they're almost like the Enterprise D...

In the model it looks like the blue pipes over metal shell. On the origional it looks like a glowing blue shell with metal bars over it. Which makes more sense if you look how it's build as a scale model.

Yea, IRML just finished his Sovvy model, based on the Nemesis refit, regardless, the quality is mind-blowing... as not to take bandwidth from SFM, I uploaded the image to my webhost... but all credit to the image goes to IRML...

The blue grills are just like the Enterprise D... in terms of how's it done, a "wall" that has ribbing on it.